1. Why are pupils being dilated on examination?

Pupil dilation is an integral part of general ophthalmic examination. The pupils dilate to give the ophthalmologist an insight into the posterior segment of the eye, which involves the optic nerve, macula and retina.

2. Why is the dioptre for glasses and lenses different?

You put the lens directly on the eye and the glasses don't.
The difference is that the lens lies on the eye and the glasses are in front of the eye. The length from the eye to the glasses is called the vertex distance and is about 12 mm. This length is why lenses must be different in intensity from the glasses.

3. Why do I have to remove the hard lenses for as many days as I years I wore them?

Hard and semi-hard lenses put a lot of pressure on the cornea and change its natural shape. For this reason, it is necessary to remove the lenses in order to restore the cornea to its natural state and to determine the correct dioptre for the patient.
 

4. Are all examinations painless?

Yes, they are, all examinations are completely painless.
 

5. Can frequent headaches be associated with a dioptre increase?

Headaches may be associated with an increase in dioptre.